Australian batsman Peter Siddle cuts a ball away while England wicketkeeper Matt Prior (L) looks on as England defeats Australia on the fourth day of the fourth Ashes cricket Test match, in Melbourne on December 29, 2010.

Australian batsman Peter Siddle cuts a ball away while England wicketkeeper Matt Prior (L) looks on as England defeats Australia on the fourth day of the fourth Ashes cricket Test match, in Melbourne on December 29, 2010. (AFP/William West)

Australian batsman Brad Haddin (R) lofts a ball away while England wicketkeeper Matt Prior (L) looks on as England defeats Australia on the fourth day of the fourth Ashes cricket Test match, in Melbourne on December 29, 2010.

Australian batsman Brad Haddin (R) lofts a ball away while England wicketkeeper Matt Prior (L) looks on as England defeats Australia on the fourth day of the fourth Ashes cricket Test match, in Melbourne on December 29, 2010. (AFP/William West)